Arduino & IoT Academy · Lesson

Wake on Timer or Pin

Schedule wakeups or trigger on an event.

Two Ways to Wake

A sleeping ESP needs a reason to wake. The two classic triggers are a timer that counts down and a pin that senses an event. ⏰

A timer wakeup is perfect for regular jobs, like reading a sensor every ten minutes. The chip sleeps, then wakes right on schedule.

esp_sleep_enable_timer_wakeup(600 * 1000000);